Design of Biquad Universal Filter Using Operational Transconductance Amplifier in 180nm Technology
نویسندگان
چکیده
This paper presents concept of universal filter using operational transconductance amplifier (OTA).The 0.18μm CMOS process is used for design and simulation. This OTA has basing current of 50μA with supply voltage ±1.25v. The design and simulation of this OTA is done using CADENCE virtuoso environment with UMC 0.18μm technology file. This paper presents a electronically tunable voltage mode universal biquadratic filter with Three input and single output using two single ended OTA and two capacitors. The proposed filter provides low-pass,High-pass,Band-pass and Band-stop by appropriately connecting the input terminals. The natural frequency and the quality factor can be set orthogonally by adjusting the circuit components.Also the natural frequency can be electronically tuned via the bias currents of OTAs. Keyword-Biquad, universal filter, voltage mode, OTA, CADENCE, IC-implementation.
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